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CN2300965Y - A transparent laser holographic anti-counterfeiting film - Google Patents

A transparent laser holographic anti-counterfeiting film Download PDF

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Publication number
CN2300965Y
CN2300965Y CN 97235091 CN97235091U CN2300965Y CN 2300965 Y CN2300965 Y CN 2300965Y CN 97235091 CN97235091 CN 97235091 CN 97235091 U CN97235091 U CN 97235091U CN 2300965 Y CN2300965 Y CN 2300965Y
Authority
CN
China
Prior art keywords
film
model
utility
laser holographic
counterfeiting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 97235091
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Chinese (zh)
Inventor
王珏
赵毅
邓忠生
沈军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tongji University
Original Assignee
Tongji University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tongji University filed Critical Tongji University
Priority to CN 97235091 priority Critical patent/CN2300965Y/en
Application granted granted Critical
Publication of CN2300965Y publication Critical patent/CN2300965Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a transparent laser holographic anti-counterfeit film, which relates to the composition of the transparent anti-counterfeit film. The utility model is composed of an organic film, a single-layer inorganic medium with high refractive index which is coated on the organic film by sol-gel method, and a laser holographic anti-counterfeit pattern printed on the medium. The utility model has the advantages of clear anti-counterfeit pattern, firm combination of the pattern film and the organic film, simple equipment, and low production cost. The utility model can be directly used for the disposable whole packing of alcohol and tobacco, sugar, dessert, etc. When the utility model which is coated on a piece of paper is used for packing, the utility model can be used for the identity card anti-counterfeiting of the anti-counterfeiting objects, such as identity cards, passports, securities, bills, etc.

Description

A kind of transparent laser holographic anti-counterfeiting film
The utility model relates to a kind of transparent counterfeiting film.
At present, form opaque anti false film by the three-dimensional holographic trademark figure of white light reconstruction on the plastic sheeting of aluminizing and the interference fringe of encryption both at home and abroad, this anti false film can not see in being packaged in by false proof thing (CN87205139), use is restricted.
The transparent counterfeiting film can be seen interior items because of it and be widely used in various article, various fields.They by by silicone oil paper, adhesive sticker and be printed on the anti-false trademark plastic sheeting (CN 2226328) that colourless or coloured holography, non-holographic pattern or character layer are formed; By the alternate overlapping bonding multilayer dielectric film laser hologram watermark card-protecting film of forming (CN 2234640Y) of the dielectric material by the organic film that is printed on hologram pattern and one group of high and low refractive index, because above-mentioned multilayer dielectric film is to obtain with physical vapor deposition method (as sputtering method) or chemical vapor deposition method, institute is so that complicated process of preparation, equipment investment is big, the cost height can only be limited to small size and use; So someone adopts the technology that hologram image is molded on the polypropylene screen to make the anti-counterfeit package (CN 1075909A) that is used for cigarette, pot foods, yet being hologram image, his shortcoming is difficult for debating not, be difficult to the effect that reaches false proof.
The purpose of this utility model is: a kind of simple in structure, with low cost and transparent laser holographic anti-counterfeiting film of being easy to discern the false from the genuine is provided.
To achieve these goals, the utility model is realized by following scheme.It is made up of the antiforge laser holographic pattern of printing on the inorganic medium of the individual layer high index of refraction that applies on organic film and this film and the inorganic medium.Individual layer high index of refraction inorganic medium on the organic film is a nanoscale, applies up through sol-gel process.
The utlity model has following advantage:
1. owing to adopted sol-gel process, thereby the investment of production equipment of anti false film is reduced greatly, and the pattern tunic constitute three-dimensional nanometer network, this network is embedded on the organic film, the pattern tunic is firmly combined with organic film, through rub thousands of time after, this film does not have obviously and comes off.
2. be general polyethylene film (PET) owing to used organic film, polypropylene film, the BOPP film, mylar or the like, and the inorganic medium of individual layer high index of refraction adopts T iO 2, Z rO 2, T iO 2+ Z rO 2Deng, thereby the production cost of this film is low, has broad application prospects.
3. the reflectivity of anti false film of the present utility model changes with the difference of incident angle, thus from outside watch optical effect good.Be clear that by the surface of false proof thing translation-angle just can be clear that the antiforge laser holographic pattern on the anti false film if be used for to be seen through this anti false film by the whole anti-counterfeit package of false proof thing.
4. this anti false film is of many uses, both can be used for by the whole anti-counterfeit package of false proof thing, and the envelope that also can be used for I.D., passport is moulded, and other certificates, card volume, bill is false proof.
Description of drawings
Fig. 1. be structural section synoptic diagram of the present utility model
Wherein A. is the structural section enlarged diagram of the utility model patterned layer
Fig. 2. in of the variation of visible light centre wavelength (550NM) reflectivity with incident angle
Fig. 3. be the reflectance spectrum of different incidence angles when thickness is 76 nanometers
Fig. 4. in of the variation of visible light centre wavelength (550NM) reflectivity with the patterned layer thickness
Fig. 5. for incident angle is the reflectance spectrum of 8 different thickness when spending
Below in conjunction with accompanying drawing the utility model is further described
Embodiment 1.
Shown that in Fig. 1 structure of the present utility model is made up of holographic false proof patterned layer 1 and organic film 2.The organic film of here selecting for use 2 is the BOPP film, at first adopts sol-gel process to apply one deck T at normal temperatures on the surface of BOPP film 2 iO 2Film 1 is then with T iO 2Film 1 oven dry is at last at T iO 2Compacting antiforge laser holographic pattern has been formed the shown holographic false proof patterned layer of A among Fig. 1, promptly at T on the film 1 iO 2Be carved with groove on the film 1, after incident light reflects through groove, because disappearing mutually and superposition principle of phase of light wave forms various multicolour patterns.Shown that in Fig. 2 visible light centre wavelength (550NM) reflectivity changes with the variation of incident angle, when incident angle is 80 degree or when bigger, the reflectivity of this film is higher, this moment, the antiforge laser holographic pattern was more clear.Fig. 3 has shown the reflectance spectrum of different incidence angles, and when increasing incident angle, the reflectivity of this film increases, and security pattern is also clear thereupon.Fig. 4 has shown that when the patterned layer thickness was in some position, the reflectivity of this film was higher in the variation of visible light centre wavelength (550NM) reflectivity with the patterned layer thickness, and this moment, the antiforge laser holographic pattern was comparatively clear.Fig. 5 has shown that incident angle is that the reflectance spectrum of 8 different thickness when spending changes, and this shows that thickness changes, and visible spectrum also changes, and has only when thickness is in some suitable position, and the antiforge laser holographic pattern is the most clear.
Embodiment 2.
As certificate protect the card anti false film, by the PET film with apply one deck Z at normal temperatures with sol-gel process rO 2Film.Then with Z rO 2The film oven dry is at last at Z rO 2The transparent laser holographic anti-counterfeiting film that compacting antiforge laser holographic pattern is formed on the film.
Embodiment 3.
As the utility model of various uses, by polyester film with apply one deck T at normal temperatures with sol-gel process iO 2+ Z rO 2Film is then with T iO 2+ Z rO 2The film oven dry is at last at T iO 2+ Z rO 2The transparent laser holographic anti-counterfeiting film that compacting antiforge laser holographic pattern is formed on the film.

Claims (3)

1. transparent laser holographic anti-counterfeiting film is characterized in that: by organic film with apply the antiforge laser holographic pattern of printing on individual layer high index of refraction inorganic medium on it and this inorganic medium and form.
2. transparent laser holographic anti-counterfeiting film according to claim 1 is characterized in that: described high index of refraction inorganic dielectric material is nanoscale T iO 2, Z rO 2, T iO 2+ Z rO 2
3. transparent laser holographic anti-counterfeiting film according to claim 1 is characterized in that: described organic film is BOPP, PET, polyester film.
CN 97235091 1997-07-23 1997-07-23 A transparent laser holographic anti-counterfeiting film Expired - Fee Related CN2300965Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97235091 CN2300965Y (en) 1997-07-23 1997-07-23 A transparent laser holographic anti-counterfeiting film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97235091 CN2300965Y (en) 1997-07-23 1997-07-23 A transparent laser holographic anti-counterfeiting film

Publications (1)

Publication Number Publication Date
CN2300965Y true CN2300965Y (en) 1998-12-16

Family

ID=33946277

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 97235091 Expired - Fee Related CN2300965Y (en) 1997-07-23 1997-07-23 A transparent laser holographic anti-counterfeiting film

Country Status (1)

Country Link
CN (1) CN2300965Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100559426C (en) * 2003-12-11 2009-11-11 同济大学 Titanium dioxide nano-sol-polyurethane composite medium transparent laser holographic anti-counterfeiting film
CN101815610A (en) * 2007-09-20 2010-08-25 爱克发-格法特公司 Security laminates with interlaminated transparent embossed polymer hologram
CN103160167A (en) * 2011-12-08 2013-06-19 洛阳希诺能源科技有限公司 Anti-counterfeiting inkpad and seal imprint technology
CN108706629A (en) * 2018-05-24 2018-10-26 武汉华工图像技术开发有限公司 A kind of laser holographic anti-counterfeiting film TiO2The preparation method of layer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100559426C (en) * 2003-12-11 2009-11-11 同济大学 Titanium dioxide nano-sol-polyurethane composite medium transparent laser holographic anti-counterfeiting film
CN101815610A (en) * 2007-09-20 2010-08-25 爱克发-格法特公司 Security laminates with interlaminated transparent embossed polymer hologram
CN103160167A (en) * 2011-12-08 2013-06-19 洛阳希诺能源科技有限公司 Anti-counterfeiting inkpad and seal imprint technology
CN108706629A (en) * 2018-05-24 2018-10-26 武汉华工图像技术开发有限公司 A kind of laser holographic anti-counterfeiting film TiO2The preparation method of layer

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C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee